Home / 103,255.55-154,885.03-28,375.23

Finding the Fourth Proportional to 103,255.55, 154,885.03 and 28,375.23

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Solution

The fourth proportional to 103,255.55, 154,885.03 and 28,375.23 is: 42,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255.55 : 154,885.03 = 28,375.23 : x
  2. Step 2: Convert to fraction form
    103,255.55/154,885.03 = 28,375.23/x
  3. Step 3: Cross multiply
    103,255.55x = 154,885.03 × 28,375.23
  4. Step 4: Simplify right side
    103,255.55x = 4,394,898,349.81
  5. Step 5: Solve for x
    x = 4,394,898,349.81/103,255.55
  6. Step 6: Final answer
    x = 42,563.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.